1 /*
2 * Copyright © 2010 Behdad Esfahbod
3 * Copyright © 2011,2012 Google, Inc.
4 *
5 * This is part of HarfBuzz, a text shaping library.
6 *
7 * Permission is hereby granted, without written agreement and without
8 * license or royalty fees, to use, copy, modify, and distribute this
9 * software and its documentation for any purpose, provided that the
10 * above copyright notice and the following two paragraphs appear in
11 * all copies of this software.
12 *
13 * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
14 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
15 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
16 * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
17 * DAMAGE.
18 *
19 * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
20 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
21 * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
22 * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
23 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
24 *
25 * Google Author(s): Behdad Esfahbod
26 */
27
28 #include "main-font-text.hh"
29 #include "shape-consumer.hh"
30
31 struct output_buffer_t
32 {
output_buffer_toutput_buffer_t33 output_buffer_t (option_parser_t *parser)
34 : options (parser, hb_buffer_serialize_list_formats ()),
35 format (parser),
36 gs (NULL),
37 line_no (0),
38 font (NULL) {}
39
initoutput_buffer_t40 void init (const font_options_t *font_opts)
41 {
42 options.get_file_handle ();
43 gs = g_string_new (NULL);
44 line_no = 0;
45 font = hb_font_reference (font_opts->get_font ());
46
47 if (!options.output_format)
48 output_format = HB_BUFFER_SERIALIZE_FORMAT_TEXT;
49 else
50 output_format = hb_buffer_serialize_format_from_string (options.output_format, -1);
51 /* An empty "output_format" parameter basically skips output generating.
52 * Useful for benchmarking. */
53 if ((!options.output_format || *options.output_format) &&
54 !hb_buffer_serialize_format_to_string (output_format))
55 {
56 if (options.explicit_output_format)
57 fail (false, "Unknown output format `%s'; supported formats are: %s",
58 options.output_format,
59 g_strjoinv ("/", const_cast<char**> (options.supported_formats)));
60 else
61 /* Just default to TEXT if not explicitly requested and the
62 * file extension is not recognized. */
63 output_format = HB_BUFFER_SERIALIZE_FORMAT_TEXT;
64 }
65
66 unsigned int flags = HB_BUFFER_SERIALIZE_FLAG_DEFAULT;
67 if (!format.show_glyph_names)
68 flags |= HB_BUFFER_SERIALIZE_FLAG_NO_GLYPH_NAMES;
69 if (!format.show_clusters)
70 flags |= HB_BUFFER_SERIALIZE_FLAG_NO_CLUSTERS;
71 if (!format.show_positions)
72 flags |= HB_BUFFER_SERIALIZE_FLAG_NO_POSITIONS;
73 if (format.show_extents)
74 flags |= HB_BUFFER_SERIALIZE_FLAG_GLYPH_EXTENTS;
75 format_flags = (hb_buffer_serialize_flags_t) flags;
76 }
new_lineoutput_buffer_t77 void new_line (void)
78 {
79 line_no++;
80 }
consume_textoutput_buffer_t81 void consume_text (hb_buffer_t *buffer,
82 const char *text,
83 unsigned int text_len,
84 hb_bool_t utf8_clusters)
85 {
86 g_string_set_size (gs, 0);
87 format.serialize_buffer_of_text (buffer, line_no, text, text_len, font, gs);
88 fprintf (options.fp, "%s", gs->str);
89 }
shape_failedoutput_buffer_t90 void shape_failed (hb_buffer_t *buffer,
91 const char *text,
92 unsigned int text_len,
93 hb_bool_t utf8_clusters)
94 {
95 g_string_set_size (gs, 0);
96 format.serialize_message (line_no, "msg: all shapers failed", gs);
97 fprintf (options.fp, "%s", gs->str);
98 }
consume_glyphsoutput_buffer_t99 void consume_glyphs (hb_buffer_t *buffer,
100 const char *text,
101 unsigned int text_len,
102 hb_bool_t utf8_clusters)
103 {
104 g_string_set_size (gs, 0);
105 format.serialize_buffer_of_glyphs (buffer, line_no, text, text_len, font,
106 output_format, format_flags, gs);
107 fprintf (options.fp, "%s", gs->str);
108 }
finishoutput_buffer_t109 void finish (const font_options_t *font_opts)
110 {
111 hb_font_destroy (font);
112 g_string_free (gs, true);
113 gs = NULL;
114 font = NULL;
115 }
116
117 protected:
118 output_options_t options;
119 format_options_t format;
120
121 GString *gs;
122 unsigned int line_no;
123 hb_font_t *font;
124 hb_buffer_serialize_format_t output_format;
125 hb_buffer_serialize_flags_t format_flags;
126 };
127
128 int
main(int argc,char ** argv)129 main (int argc, char **argv)
130 {
131 main_font_text_t<shape_consumer_t<output_buffer_t>, FONT_SIZE_UPEM, 0> driver;
132 return driver.main (argc, argv);
133 }
134